Cylindrical can.



P. I. ANDREWS.

CVLINDRICAL CAN. APPLICATION FILED AUG.6, 1915.

1@@&@@ a Patented Dec. 28, 1915.

PAUL I. ANDREWS, OF KENNEIBUNK, MAINE.

GYLINDRICAL CAN.

Specification of Letters Patent.

Application filed August 6, 1915. Serial No. 44,114.

' drawings.

The invention relatesto cylindrical cans of-fiber such for instance as roving cans. In

cans of this character it is important to have the rim'stren gthened by some kind of reinforcement and it is also desirablethat this reinforcement should not project into the interior of the can, but that the inner surface should be entirely smooth and free from inwardly projecting portions. The best form of reinforcement is to make the top with an outward double roll integral with the body of the can. One form of such double roll is shown in Patent No. 1,100,516, granted to meJune 16, 1914. I have found that when the can is made seamless and with a double roll of that character the roll can be made perfectly but when it is attempted to form such a roll on the top of'a riveted can in which the cylinder is made by rolling a sheet into a cylindrical form having overlapping edges which are riveted 1 together, the double thickness due to the overlapping portions causes an indentation orla wrinkle in the roll which is objectionab e.

The object of the present invention is to cut or form one of the overlapping edges in such manner that when the roll is turned no wrinkle or indentation will be produced, but it will lie smooth, as do the other portions of the roll. i The invention will be fully understood by reference to the following description taken in connection with the accompanying drawings and the novel features thereof are pointed out and clearly defined in the claim at the close of this specification.

In the drawings, Figure 1 is a perspective View of a riveted can having a roll embodying the invention. Fig. 2is a sectional view showing the roll. Fig. 3 is a side elevation enlarged of the cylinder partly broken away with the overlapping edges riveted together before the roll is turned showing the notched edge embodying the invention. Fig. 4 is an enlarged side elevation partly broken away after the top is turned to form the roll.

Referring now to the drawings, 1 represents the can or cylinder of fiber with overlapping edges 7 8, secured together by rivets 2. The outside overlapping edge 7 is formed with a. notch 3 cut in some distance from the edge before the roll is turned. The cylinder is then put into a suitable press and the double roll 4 is then formed, and in so forming the roll the edges 5, 6 of the notch 3 will be brought down close together asshown' in Fig. 4, leaving simply a thin line or crevice which will be entirely concealed because in the process of producing the roll the overlapping portion 7 which before the roll was formed was on the outside is rolled in and covered-by the then overlapping portion 8 which before rolling was covered by the lapportion 7. If it were not for the notch 3, the material between the edges -5, 6 of the notch and which was removed by forming the notch would have been bulged out, forming a wrinkle,

"What I claim is A can having a cylindrical body composed of a sheet of fiber rolledinto a cylindrical form. with overlapping edges riveted together and having an outwardly turned radial rim roll integral with said body and extending entirely around the periphery of the rim including said overlapping portions, said roll having an outwardly turned curved upper portion, thence a downward turn, thence a turn toward the body, thence an upward bend and thence another outward turn intermediate said upper and lower turns, the outer overlapping side having a cut out notch in that portion of its edge near the top which is on the outside edge before the roll is formed and which is entirely inclosed within the roll after the roll is formed. v

In testimony whereof I affix my signature, 1

in presence of two witnesses.

- PAUL I. ANDREWS. Witnesses:

C. L Amuws, W. F. WATERHOUSE. 

